Doubt about using a dictionary to hold instances #1
Description
Hi there! Thanks for sharing your code!
I'm studying different implementations of Singleton in Python and found out that the most efficient use would be using a Metaclass.
I have one doubt, if you don't mind answering, about why did you choose a dictionary to hold the instances. Wouldn't a single scalar variable be enough for that?
So, instead of checking with in if there is a instance already, one could just use if not instances?
I believe the memory usage would be lower then and I guess a single instance is all the metaclass should expect.
Thanks!